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National Basketball Association
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The National Basketball Association is the major mens professional basketball league in North America, and is widely considered to be the premier mens professional basketball league in the world. It has 30 teams, and is a member of USA Basketball. The NBA is one of the four professional sports leagues in the United States. NBA players are the worlds best paid athletes by average annual salary per player, the league was founded in New York City on June 6,1946, as the Basketball Association of America. The league adopted the name National Basketball Association on August 3,1949, the leagues several international as well as individual team offices are directed out of its head offices located in the Olympic Tower at 645 Fifth Avenue in New York City. NBA Entertainment and NBA TV studios are directed out of offices located in Secaucus, the Basketball Association of America was founded in 1946 by owners of the major ice hockey arenas in the Northeastern and Midwestern United States and Canada. On November 1,1946, in Toronto, Canada, the Toronto Huskies hosted the New York Knickerbockers at Maple Leaf Gardens, the first basket was made by Ossie Schectman of the Knickerbockers. During its early years, the quality of play in the BAA was not significantly better than in competing leagues or among leading independent clubs such as the Harlem Globetrotters. For instance, the 1948 ABL finalist Baltimore Bullets moved to the BAA and won that leagues 1948 title, Following the 1948–49 season, the BAA took in the remainder of the NBL, Syracuse, Anderson, Tri-Cities, Sheboygan, Denver, and Waterloo. The new league had seventeen franchises located in a mix of large and small cities, as well as arenas and smaller gymnasiums. The process of contraction saw the leagues smaller-city franchises move to larger cities, the Hawks shifted from the Tri-Cities to Milwaukee in 1951, and then to St. Louis in 1955. The Rochester Royals moved from Rochester, New York, to Cincinnati in 1957, japanese-American Wataru Misaka broke the NBA color barrier in the 1947–48 season when he played for the New York Knicks. He remained the only player in league history prior to the first African-American, Harold Hunter. During this period, the Minneapolis Lakers, led by center George Mikan, won five NBA Championships, to encourage shooting and discourage stalling, the league introduced the 24-second shot clock in 1954. If a team does not attempt to score a goal within 24 seconds of obtaining the ball, play is stopped. In 1957, rookie center Bill Russell joined the Boston Celtics, who already featured guard Bob Cousy and coach Red Auerbach, and went on to lead the club to eleven NBA titles in thirteen seasons. Center Wilt Chamberlain entered the league with the Warriors in 1959 and became a dominant individual star of the 1960s, russells rivalry with Chamberlain became one of the greatest rivalries in the history of American team sports. The 1960s were dominated by the Celtics, led by Russell, Bob Cousy and coach Red Auerbach, Boston won eight straight championships in the NBA from 1959 to 1966